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Finding the Fourth Proportional to 7,248.95, 10,870.30 and 4,130.40

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Solution

The fourth proportional to 7,248.95, 10,870.30 and 4,130.40 is: 6,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,248.95 : 10,870.30 = 4,130.40 : x
  2. Step 2: Convert to fraction form
    7,248.95/10,870.30 = 4,130.40/x
  3. Step 3: Cross multiply
    7,248.95x = 10,870.30 × 4,130.40
  4. Step 4: Simplify right side
    7,248.95x = 44,898,687.12
  5. Step 5: Solve for x
    x = 44,898,687.12/7,248.95
  6. Step 6: Final answer
    x = 6,193.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.